GE Lua Documentation

castRayDebug

Definition

-- @/lua/ge/ge_utils.lua:1298

-- same as castRay, but with debug drawing
function castRayDebug(origin, target, includeTerrain, renderGeometry)
  if includeTerrain == nil then includeTerrain = false end
  if renderGeometry == nil then renderGeometry = false end

  -- ray line
  debugDrawer:drawSphere(origin, 0.1, ColorF(1,0,0,1))
  debugDrawer:drawSphere(target, 0.1, ColorF(0,0,1,1))

  local res = castRay(origin, target, includeTerrain, renderGeometry)

  -- the ray line
  local col = ColorF(0,1,0,1)
  if not res then col = ColorF(1,0,0,1) end
  debugDrawer:drawLine(origin, target, col)

  if not res then return end

  -- draw the collision and the normal of it
  debugDrawer:drawSphere(res.pt, 0.1, ColorF(0,1,0,1))
  debugDrawer:drawLine(res.pt, (res.pt + res.norm), col)

  return res
end

Callers

  local b = vec3(4 + math.cos(castRayTest) * 3,-2+math.sin(castRayTest) * 3,-10)
  castRayDebug(a, b, false, false)
end